import PySimpleGUI as sg; web=False
# import PySimpleGUIWeb as sg; web=True
# import PySimpleGUIQT as sg; web=False

"""
    If you're using the PySimpleGUI color themes, then your code will a line that looks something like this:
        sg.change_look_and_feel('Light Green 1') or sg.change_look_and_feel('LightGreen1')
"""

# Use the built-in Theme Viewer to show all of the themes and their names
sg.preview_all_look_and_feel_themes()

# The remainder of the program duplicates the built-in Theme Viewer, allowing you to create your
# own custom theme viewer window.  You can configure the number of frames per row for example. Or maybe you only
# want to see the dark themes

WINDOW_BACKGROUND = 'lightblue'
web = False

sg.change_look_and_feel('Default')

def sample_layout():
    return [[sg.Text('Text element'), sg.InputText('Input data here', size=(15, 1))],
            [sg.Button('Ok'), sg.Button('Cancel'), sg.Slider((1, 10), orientation='h', size=(10, 15))]]


layout = [[sg.Text('List of Themes Provided by PySimpleGUI', font='Default 18', background_color=WINDOW_BACKGROUND)]]

FRAMES_PER_ROW = 9
names = sg.list_of_look_and_feel_values()
names.sort()
row = []
for count, theme in enumerate(names):
    sg.change_look_and_feel(theme)
    if not count % FRAMES_PER_ROW:
        layout += [row]
        row = []
    row += [sg.Frame(theme, sample_layout() if not web else [[sg.T(theme)]] + sample_layout())]
if row:
    layout += [row]

window = sg.Window('Custom Preview of Themes', layout, background_color=WINDOW_BACKGROUND)
window.read()
window.close()
del window